Standard Blade / MTD 942-0538Pack Size:1MTD 742-0538, MTD 942-0538Aladdin UMT53, Dealer Choice 50-3010, Edgewater 155546, ESF 115-212, Foley/PLP 115-212, Green Line 156127, Green Meadow UMT60, Laser L1527, Laser 91059, NHC MA2408, Oregon 98-538, Prime Line 7-06399, Ratio Parts 22-327, Rotary 6127, Sunbelt SB-98900, Sunbelt MA-2408, Sunbelt SB-6127, Sunbelt B1MA2408MTD Requires 2 of 335-782 and 2 of 335-798 for 42" deckLength: 21 1/4 ", Center Hole: 3/8 ", Outer Hole: 7/16 ", Center To Center: 2 1/2 ", Width: 3 ", Requires 2 of 335-782 and 2 of 335-798 for 42" cut, Thickness: .149 "